Title :
PCS 1900 MHz duplexer using thin film bulk acoustic resonators (FBARs)
Author :
Ruby, R. ; Bradley, P. ; Larson, J.D., III ; Oshmyansky, Y.
Author_Institution :
Hewlett-Packard Co., Palo Alto, CA, USA
fDate :
5/13/1999 12:00:00 AM
Abstract :
An ultra-miniature duplexer (5×8×2.2 mm3) consisting of two FBAR filters and nine passive components operating at 1900 MHz is described. The minimum insertion loss for the Tx and Rx bands is better than -3 dB. Isolation between the Tx and Rx ports exceeds 50 dB over most of the Tx band and 46 dB in the Rx band. The FBAR filters handle up to 2 W throughout the passband
Keywords :
acoustic resonators; bulk acoustic wave devices; code division multiple access; personal communication networks; 1900 MHz; 2 W; FBARs; PCS; duplexer; isolation; minimum insertion loss; thin film bulk acoustic resonators;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19990559
